降低鼠标速度

Question

我升级了 Arch-Linux，但现在我的鼠标太快了。我用谷歌搜索了一下，大多数帖子都说要降低Device Accel * Deceleration ，但我没有这样的设置：

# xinput list-props 8
Device 'Logitech M705':
    Device Enabled (142):   1
    Coordinate Transformation Matrix (144): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    libinput Accel Speed (277):     0.000000
    libinput Accel Speed Default (278):     0.000000
    libinput Accel Profiles Available (279):        1, 1
    libinput Accel Profile Enabled (280):   1, 0
    libinput Accel Profile Enabled Default (281):   1, 0
    libinput Natural Scrolling Enabled (282):       0
    libinput Natural Scrolling Enabled Default (283):       0
    libinput Send Events Modes Available (262):     1, 0
    libinput Send Events Mode Enabled (263):        0, 0
    libinput Send Events Mode Enabled Default (264):        0, 0
    libinput Left Handed Enabled (284):     0
    libinput Left Handed Enabled Default (285):     0
    libinput Scroll Methods Available (286):        0, 0, 1
    libinput Scroll Method Enabled (287):   0, 0, 0
    libinput Scroll Method Enabled Default (288):   0, 0, 0
    libinput Button Scrolling Button (289): 2
    libinput Button Scrolling Button Default (290): 2
    libinput Middle Emulation Enabled (291):        0
    libinput Middle Emulation Enabled Default (292):        0
    Device Node (265):      "/dev/input/event3"
    Device Product ID (266):        1133, 4123
    libinput Drag Lock Buttons (293):       <no items>
    libinput Horizontal Scroll Enabled (294):       1

有什么想法如何降低鼠标速度吗？

我有最新的 KDE 5.8